.banner {
  height: 510px;
  background-size:auto 100%;
  background-repeat: no-repeat;
  background-position: center center;
  position: relative;
}


.sub_nav {
  width: 100%;
  height: 61px;
  border-bottom: 1px solid #f1f1f1;
  /*background: url(../images/w80.png) repeat;*/
  left: 0;
  background-color: #dd641f;
}

@media (max-width: 668px) {
  .sub_nav {
    display: none;
  }
}

.banner .sub_nav ul {

}

.sub_nav ul li {
  display: block;
  float: left;
}

.sub_nav ul li a {
  display: block;
  width: 100%;
  text-align: center;
  background: #fff;
  color: #666;
  font-size: 16px;
  height: 60px;
  line-height: 60px;
  border-right: 1px solid #f1f1f1;
  -webkit-transition: all 0.3s;
  -moz-transition: all 0.3s;
  -o-transition: all 0.3s;
  transition: all 0.3s;
}

.sub_nav ul li a.cur,
.sub_nav ul li a:hover {
  background: #009493;
  color: #fff;
}

.sub_nav_pro ul li a {
  width: auto;
  padding: 0px 30px;
}

.sub_nav_small ul li a {
  padding: 10px 25px;
}

.list_news {
  margin-top: 50px;
  border-top: 1px solid #e5e5e5;
}

.list_news ul {
  margin: 0;
  padding: 0;
}

.list_news ul li {
  display: block;
  padding: 39px 0px;
  border-bottom: 1px solid #e5e5e5;
}

.list_news ul li a {
  display: block;
  height: 187px;
}

.list_news ul li a span {
  display: block;
  height: 187px;
}

.list_news ul li a span.thumb {
  float: left;
  width: 25%;
  overflow: hidden;
}

.list_news ul li a span.thumb img {
  width: auto;
  overflow: hidden;
  height: 100%;
  float: right;
  display: block;
  -webkit-transition: all 0.3s;
  -moz-transition: all 0.3s;
  -o-transition: all 0.3s;
  transition: all 0.3s;
}

.list_news ul li a span.txt {
  float: left;
  width: 75%;
  height: 187px;
}

.list_news ul li a span.txt i.time {
  display: block;
  font-style: normal;
  font-size: 1.2rem;
  color: #c2c3c3;
  font-weight: bold;
  height: 25px;
  line-height: 25px;
}

.list_news ul li a span.txt b {
  display: block;
  font-size: 2.4rem;
  color: #000;
  font-weight: normal;
  height: 50px;
  line-height: 50px;
  overflow: hidden;
}

.list_news ul li a span.txt p {
  margin: 0;
  padding: 0;
  display: block;
  height: 48px;
  line-height: 24px;
  overflow: hidden;
  color: #555;
  font-size: 1.4rem;
}

.list_news ul li a span.txt i.more {
  display: block;
  color: #f60;
  padding-top: 20px;
  font-style: normal;
  font-size: 1.2rem;
  font-weight: bold;
}

.list_news ul li a:hover span.thumb img {
  -webkit-transform: scale(1.05, 1.05);
  -moz-transform: scale(1.05, 1.05);
  -o-transform: scale(1.05, 1.05);
  transform: scale(1.05, 1.05);
}

.list_news ul li a:hover span.txt i,
.list_news ul li a:hover span.txt b,
.list_news ul li a:hover span.txt p {
  color: #f60;
}
@media (max-width: 668px) {
  .banner{
    height: 300px;
  }
  .list_news {
    margin-top: 20px;
    border-top: 1px solid #e5e5e5;
  }
  .list_news ul li a span.txt i.more{
    padding-top: 0px;
  }
  .list_news ul li{
    padding: 15px 0;
  }
}